September weather forecastVianí, Colombia

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Vianí, Colombia, with an average temperature varying between 24.8°C (76.6°F) and 13.8°C (56.8°F).

Temperature

With average high and low temperatures of 24.8°C (76.6°F) and 13.8°C (56.8°F) respectively, September is Vianí's warmest month.

Humidity

The average relative humidity in September is 69%.

Rainfall

In Vianí, in September, it is raining for 11.2 days, with typically 37mm (1.46") of accumulated precipitation. In Vianí, during the entire year, the rain falls for 170.4 days and collects up to 874mm (34.41") of precipitation.

Daylight

In September, the average length of the day is 12h and 8min.
On the first day of the month, sunrise is at 05:51 and sunset at 18:04. On the last day of September, sunrise is at 05:45 and sunset at 17:50 -05.

Sunshine

In Vianí, Colombia, the average sunshine in September is 10h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 5. January through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 5 during September leads to these instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Boost your sun resistance with garments that are densely woven yet spacious.

Updated: Jul 22, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Vianí experiences its average highest temperatures in September, reaching a peak of 24.8°C (76.6°F) and a minimum of 13.8°C (56.8°F).

In Vianí, in September, the average high-temperature is 24.8°C (76.6°F), and the average low-temperature is 13.8°C (56.8°F).

In September, the average relative humidity is 69%.

In Vianí, in September, it is raining for 11.2 days, with typically 37mm (1.46") of accumulated precipitation.

The average day length in September is 12h and 8min.

In September, on the first day of the month, sunrise is at 05:51 and sunset at 18:04. On the last day of the month, sunrise is at 05:45 and sunset at 17:50 -05.

The average sunshine duration in September is 10h.

The months with the highest UV index are January through December, with an average maximum UV index of 5.

The months with the lowest UV index are January through December, with an average maximum UV index of 5.

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

24.4°C

24.8°C

23.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7km/h

6.3km/h

5.3km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

19.7

18.3

13.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Vianí, Colombia

Average high temperature in September: 24.8°C

The warmest month (with the highest average high temperature) is September (24.8°C).
The month with the lowest average high temperature is November (22.5°C).

Average low temperature in September: 13.8°C

The month with the highest average low temperature is March (14.7°C).
The coldest month (with the lowest average low temperature) is December (13.1°C).

Average pressure in September
Vianí, Colombia

Average pressure in September: 1014.3mbar

The month with the highest atmospheric pressure is July (1015mbar).
The month with the lowest atmospheric pressure is November (1012.8mbar).

Average wind speed in September
Vianí, Colombia

Average wind speed in September: 6km/h

The windiest months (with the highest average wind speed) are July and August (6.7km/h).
The calmest month (with the lowest average wind speed) is November (4.2km/h).

Average humidity in September
Vianí, Colombia

Average humidity in September: 69%

The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (68%).

Average rainfall in September
Vianí, Colombia

Average rainfall in September: 37mm

The wettest month (with the highest rainfall) is October (125mm).
The driest month (with the least rainfall) is August (28mm).

Average rainfall days in September
Vianí, Colombia

Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is March (18.4 days).
The month with the least rainy days is August (10.1 days).

Average daylight in September /
Average sunshine in September
Vianí, Colombia

Average daylight in September: 12h and 6min

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).

Average sunshine in September: 10h and 0min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 8h and 12min).

Average sunshine days in September
Vianí, Colombia

Average sunshine days in September: 18.3 days

The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is November (11.1 days).

Average UV index in September
Vianí, Colombia

Average UV index in September: 5

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).